io.github.agentc22/x402engine-mcp
NPM · X402ENGINE-MCP
50+ pay-per-call APIs for AI agents — images, LLM, code, crypto, travel & more via x402
Available components
Last scanned (11 hours ago)
Scores higher than 40% of npm servers
Category Crypto and Web3
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security81
- No malware found by supply-chain analysis.Pass
- CVE check failed: a known high-severity CVE affects zod 3.25.76, a direct dependency. A fixed version is available. View diagnostics → Fail
- No install/post-install scripts declared.Pass
- 30 of 93 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency45
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 24 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability42
- 0% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Fail
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 1533 tokens (~73/item across 21 items; 20 tools + 1 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety75
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 0 of 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "execute_code" implies "execute" and declares no destructiveHint at all, which the MCP spec reads as destructive by default. See how to fix → Fail
- An AI judge read all 21 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 2 Nov 26 0
- Stability: 0.97 → pass security
- 1 Nov 26 0
- Stability: pass → 0.97 functional
- 26 Oct 26 0
- Stability: 0.97 → pass security
- 25 Oct 26 0
- Stability: pass → 0.97 functional
- 24 Oct 26 −5
- CVE-2023-54404 affects this package: high ▼ security
- Known CVEs: pass → fail ▼ security
- 19 Oct 26 0
- Stability: 0.97 → pass security
- Security disclosure: unverified → fail ▼ functional
- 18 Oct 26 +1
- Security disclosure: fail → unverified ▼ functional
- 15 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Analysed npm/x402engine-mcp@1.0.3
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Vulnerabilities 1 finding
| ID | CVE | Severity | Vector | Fix available |
|---|---|---|---|---|
| GHSA-mrhx-c7xc-m3w5 | CVE-2023-54404 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | yes |
Background: What a vulnerability scan can and cannot prove →
Dependencies 93 packages
| Packages resolved | 93 |
|---|---|
| Stale | 30 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
discover_services ~32
List all available x402 Engine APIs with pricing, endpoints, and payment networks. Call this first to understand what's available.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
execute_code ~69
Execute code in a secure sandboxed environment (E2B). Supports Python, JavaScript, Bash, and R. $0.005 per execution.
| Name | Type | Req | Description |
|---|---|---|---|
| code | string | yes | Code to execute |
| language | string | – | Programming language |
| timeout | number | – | Execution timeout in seconds |
No output schema declared.
No examples provided.
generate_image ~142
Generate an image from a text prompt. Three quality tiers: 'fast' ($0.015, FLUX Schnell), 'quality' ($0.05, FLUX.2 Pro), 'text' ($0.12, Ideogram v3 for images with text). Returns image URL.
| Name | Type | Req | Description |
|---|---|---|---|
| height | number | – | Image height in pixels |
| prompt | string | yes | Text description of the image to generate |
| seed | number | – | Random seed for reproducibility |
| tier | string | – | Quality tier: fast ($0.015), quality ($0.05), text ($0.12) |
| width | number | – | Image width in pixels |
No output schema declared.
No examples provided.
get_crypto_history ~62
Get historical price data for a cryptocurrency. $0.003 per request.
| Name | Type | Req | Description |
|---|---|---|---|
| currency | string | – | Fiat currency |
| days | – | – | Number of days of history (or 'max') |
| id | string | yes | Coin ID (e.g., 'bitcoin') |
No output schema declared.
No examples provided.
get_crypto_markets ~77
Get top cryptocurrencies by market cap with detailed market data. $0.002 per request.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | Filter by category |
| currency | string | – | Fiat currency for prices |
| limit | number | – | Number of results |
| order | string | – | Sort order |
| page | number | – | Page number |
No output schema declared.
No examples provided.
get_crypto_price ~90
Get current prices for cryptocurrencies. $0.001 per request.
| Name | Type | Req | Description |
|---|---|---|---|
| currencies | string | – | Comma-separated fiat currencies (default: 'usd') |
| ids | string | yes | Comma-separated coin IDs (e.g., 'bitcoin,ethereum,solana') |
| include_24h | boolean | – | Include 24h price change |
| include_mcap | boolean | – | Include market cap |
No output schema declared.
No examples provided.
get_from_ipfs ~38
Retrieve content from IPFS by CID. $0.001 per request.
| Name | Type | Req | Description |
|---|---|---|---|
| cid | string | yes | IPFS content identifier (CID) |
No output schema declared.
No examples provided.
get_token_metadata ~83
Get metadata for a token (name, symbol, decimals, etc.). $0.002 per request.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | – | Token contract address |
| chain | string | – | Blockchain name (required with address) |
| id | string | – | Token ID (alternative to chain+address) |
| slug | string | – | Token slug (alternative to chain+address) |
No output schema declared.
No examples provided.
get_token_prices ~39
Get DEX-derived prices for tokens by contract address. $0.005 per request.
| Name | Type | Req | Description |
|---|---|---|---|
| tokens | array | yes | Array of tokens to price |
No output schema declared.
No examples provided.
get_trending_crypto ~21
Get trending cryptocurrencies. $0.001 per request.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
get_wallet_balances ~65
Get token balances for a wallet address on any supported chain. $0.005 per request.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | yes | Wallet address |
| chain | string | yes | Blockchain name (e.g., 'ethereum', 'base', 'solana', 'arbitrum') |
No output schema declared.
No examples provided.
get_wallet_pnl ~77
Get profit and loss analysis for a wallet's token trades. $0.01 per request.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | yes | Wallet address |
| chain | string | yes | Blockchain name |
| min_liquidity | number | – | Minimum liquidity filter |
| min_volume_24h | number | – | Minimum 24h volume filter |
No output schema declared.
No examples provided.
get_wallet_transactions ~42
Get transaction history for a wallet address. $0.005 per request.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | yes | Wallet address |
| chain | string | yes | Blockchain name |
No output schema declared.
No examples provided.
pin_to_ipfs ~59
Pin JSON data to IPFS via Pinata. Returns the IPFS CID. $0.01 per pin.
| Name | Type | Req | Description |
|---|---|---|---|
| json | object | yes | JSON object to pin to IPFS |
| name | string | – | Name for the pinned content |
No output schema declared.
No examples provided.
search_cheapest_dates ~103
Find the cheapest travel dates for a route. Returns date/price pairs sorted by price. $0.01 per request.
| Name | Type | Req | Description |
|---|---|---|---|
| departureDate | string | – | Approximate departure date in YYYY-MM-DD format |
| destination | string | yes | Destination airport IATA code (e.g., 'LAX') |
| oneWay | boolean | – | Search one-way flights only |
| origin | string | yes | Origin airport IATA code (e.g., 'JFK') |
No output schema declared.
No examples provided.
search_crypto ~38
Search for a cryptocurrency by name or symbol. $0.001 per request.
| Name | Type | Req | Description |
|---|---|---|---|
| q | string | yes | Search query (coin name or symbol) |
No output schema declared.
No examples provided.
search_flights ~166
Search flight offers by route, dates, and passengers. Returns pricing, itineraries, and airlines. $0.01 per request.
| Name | Type | Req | Description |
|---|---|---|---|
| adults | number | – | Number of adult passengers |
| currencyCode | string | – | Currency code for prices (e.g., 'USD', 'EUR') |
| departureDate | string | yes | Departure date in YYYY-MM-DD format |
| destination | string | yes | Destination airport IATA code (e.g., 'LAX') |
| max | number | – | Maximum number of offers to return |
| nonStop | boolean | – | Only show non-stop flights |
| origin | string | yes | Origin airport IATA code (e.g., 'JFK') |
| returnDate | string | – | Return date in YYYY-MM-DD format (for round trips) |
No output schema declared.
No examples provided.
search_hotels ~155
Search hotel offers by city and dates. Returns room details, pricing, and availability. $0.01 per request.
| Name | Type | Req | Description |
|---|---|---|---|
| adults | number | – | Number of adult guests per room |
| checkInDate | string | yes | Check-in date in YYYY-MM-DD format |
| checkOutDate | string | yes | Check-out date in YYYY-MM-DD format |
| cityCode | string | yes | City IATA code (e.g., 'PAR' for Paris, 'LON' for London) |
| currency | string | – | Currency code for prices (e.g., 'USD') |
| priceRange | string | – | Price range filter (e.g., '100-200') |
| roomQuantity | number | – | Number of rooms |
No output schema declared.
No examples provided.
search_locations ~74
Search for airports and cities by keyword. Returns IATA codes, names, and coordinates. $0.005 per request.
| Name | Type | Req | Description |
|---|---|---|---|
| keyword | string | yes | Search keyword (e.g., 'London', 'JFK', 'Paris') |
| subType | string | – | Location type filter: AIRPORT, CITY, or both |
No output schema declared.
No examples provided.
transcribe_audio ~97
Transcribe audio to text using Deepgram Nova-3. Accepts a public URL to an audio file. $0.10 per transcription.
| Name | Type | Req | Description |
|---|---|---|---|
| audio_url | string | yes | Public URL to audio file (mp3, wav, etc.) |
| diarize | boolean | – | Enable speaker identification |
| language | string | – | Language code (e.g., 'en', 'es') |
| punctuate | boolean | – | Add punctuation |
No output schema declared.
No examples provided.
How do I install the io.github.agentc22/x402engine-mcp server?
io.github.agentc22/x402engine-mcp runs locally as an npm package, launched with npx -y x402engine-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · x402engine-mcp
claude mcp add agentc22-x402engine-mcp -- npx -y x402engine-mcp
What is the io.github.agentc22/x402engine-mcp server?
io.github.agentc22/x402engine-mcp is listed in the public MCP registry as io.github.agentc22/x402engine-mcp. 50+ pay-per-call APIs for AI agents, images, LLM, code, crypto, travel & more via x402. This page covers its npm package (x402engine-mcp).
Is the io.github.agentc22/x402engine-mcp server safe to use?
io.github.agentc22/x402engine-mcp scores 71 out of 100 on VerifyMCP. We recorded 1 known advisory against it as of 5 November 2026. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the io.github.agentc22/x402engine-mcp server expose?
io.github.agentc22/x402engine-mcp exposes 20 tools: discover_services, generate_image, execute_code, transcribe_audio, get_crypto_price, and 15 more. Their descriptions and schemas cost roughly 1,529 tokens of context every time the server is loaded.
Is the io.github.agentc22/x402engine-mcp server still maintained?
io.github.agentc22/x402engine-mcp is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the io.github.agentc22/x402engine-mcp server under?
io.github.agentc22/x402engine-mcp declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.